Some screw oil press machines are equipped with electric motors as required. Pressing chamber is the key part which contains a pressing cage and a screw shaft rotating in the cage.

An electric cabinet is also necessary to control the whole working procedure.

Features of groundnut oil expeller machine :Different from the automatic screw oil press, this screw oil press has its own features and markets.1.Made of high quality steel, wear-resistant and easy to clean.2.With the properly designed pressing chamber, the increased pressure in the chamber highly improves working efficiency.